Features:
[Automatic Gains Control]Built-in automatic gains control function provides three selectable gains setting of 40dB, 50dB, and 60dB, ensuring clear auditory input in various environments.
[Broad-Spectrum Compatibility Design]Compatible with various development boards such as ESP8266, facilitating seamless integration with existing projects without the need for additional adapters.
[Low-Noise Performance]Low input reference noise density of just 30nV, delivering purer audiory and reducing background noise interferences.
[Wide Voltages Ranging]Supports power supply voltages from 2.7V to 5.5V, flexibly adapting to various power supply conditions and enhancing device compatibility.
[Fast Response Capability]Programmable attack and release ratios ensuring rapid response to auditory changes, maintaining natural and smooth sound.
Specifications:
Automatic Gains Control ()
3 gains setting (40dB, 50dB, 60dB)
Programmable action time
Programmable action and release time ratio
2.7V to 5.5V supply voltages ranges
Low input noise density 30nV
Low THD: 0.04% (typical)
With 2V low noise microphone bias
14-pin TDFN (3mm x 3mm) package
Power supply voltages: 2.7v-5.5v @ 3mA current
Output: 2Vpp at 1.25V bias
Frequency response: 20Hz-20 KHz
Automatic, up to 40dB, 50dB or 60dB
Size:about 25.4x14mm/1x0.55in
Package Includes:
1 Set MAX9814 microphone amplifier board
note:
Please allow 1-2cm errors due to manual measurement.
Please allow for slight color differences due to different display resolution.
No-delivery refund
